Title :
Rain-flagging of the Envisat altimeter
Author :
Quartly, Graham D. ; Srokosz, Meric A.
Author_Institution :
Lab. for Satellite Oceanogr., Southampton Oceanogr. Centre, UK
Abstract :
As the goals for altimetric measurements become ever more precise, there is concern about the reliable detection and discarding of rain contaminated data. A dual-frequency rain detection technique developed for the Ku- and C-band TOPEX altimeter, is adapted for the Ku- and S-band RA-2 altimeter on Envisat. Of particular concern is the selection of a suitable threshold to minimise the quantity of good data inadvertently discarded.
Keywords :
atmospheric techniques; oceanographic techniques; radar altimetry; rain; remote sensing by radar; C-band TOPEX altimeter; Envisat altimeter; S-band RA-2 altimeter; altimetric measurement; dual-frequency rain detection technique; rain flagging; reliable detection; Attenuation; Backscatter; Frequency; Rain; Scattering; Sea surface; Shape; Surface fitting; Surface waves; Wind speed;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International
Print_ISBN :
0-7803-7929-2
DOI :
10.1109/IGARSS.2003.1294655
